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Finding the Fourth Proportional to 157,435.10, 220,875.70 and 157,435.10

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Solution

The fourth proportional to 157,435.10, 220,875.70 and 157,435.10 is: 220,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,435.10 : 220,875.70 = 157,435.10 : x
  2. Step 2: Convert to fraction form
    157,435.10/220,875.70 = 157,435.10/x
  3. Step 3: Cross multiply
    157,435.10x = 220,875.70 × 157,435.10
  4. Step 4: Simplify right side
    157,435.10x = 34,773,587,917.07
  5. Step 5: Solve for x
    x = 34,773,587,917.07/157,435.10
  6. Step 6: Final answer
    x = 220,875.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.