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Finding the Fourth Proportional to 134,774,652.60, 202,161,978.90 and 129,483,862.20

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Solution

The fourth proportional to 134,774,652.60, 202,161,978.90 and 129,483,862.20 is: 194,225,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,774,652.60 : 202,161,978.90 = 129,483,862.20 : x
  2. Step 2: Convert to fraction form
    134,774,652.60/202,161,978.90 = 129,483,862.20/x
  3. Step 3: Cross multiply
    134,774,652.60x = 202,161,978.90 × 129,483,862.20
  4. Step 4: Simplify right side
    134,774,652.60x = 26,176,713,817,966,908
  5. Step 5: Solve for x
    x = 26,176,713,817,966,908/134,774,652.60
  6. Step 6: Final answer
    x = 194,225,793.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.