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Finding the Fourth Proportional to 157,961,970.80, 236,517,803.40 and 157,961,970.80

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Solution

The fourth proportional to 157,961,970.80, 236,517,803.40 and 157,961,970.80 is: 236,517,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,961,970.80 : 236,517,803.40 = 157,961,970.80 : x
  2. Step 2: Convert to fraction form
    157,961,970.80/236,517,803.40 = 157,961,970.80/x
  3. Step 3: Cross multiply
    157,961,970.80x = 236,517,803.40 × 157,961,970.80
  4. Step 4: Simplify right side
    157,961,970.80x = 37,360,818,354,350,944
  5. Step 5: Solve for x
    x = 37,360,818,354,350,944/157,961,970.80
  6. Step 6: Final answer
    x = 236,517,803.40

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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.