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Finding the Fourth Proportional to 86,925,400.90, 130,388,101.35 and 86,925,400.90

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Solution

The fourth proportional to 86,925,400.90, 130,388,101.35 and 86,925,400.90 is: 130,388,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,925,400.90 : 130,388,101.35 = 86,925,400.90 : x
  2. Step 2: Convert to fraction form
    86,925,400.90/130,388,101.35 = 86,925,400.90/x
  3. Step 3: Cross multiply
    86,925,400.90x = 130,388,101.35 × 86,925,400.90
  4. Step 4: Simplify right side
    86,925,400.90x = 11,334,037,982,438,582
  5. Step 5: Solve for x
    x = 11,334,037,982,438,582/86,925,400.90
  6. Step 6: Final answer
    x = 130,388,101.35

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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.