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Finding the Fourth Proportional to 157,125.60, 235,688.40 and 63,698.40

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Solution

The fourth proportional to 157,125.60, 235,688.40 and 63,698.40 is: 95,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,125.60 : 235,688.40 = 63,698.40 : x
  2. Step 2: Convert to fraction form
    157,125.60/235,688.40 = 63,698.40/x
  3. Step 3: Cross multiply
    157,125.60x = 235,688.40 × 63,698.40
  4. Step 4: Simplify right side
    157,125.60x = 15,012,973,978.56
  5. Step 5: Solve for x
    x = 15,012,973,978.56/157,125.60
  6. Step 6: Final answer
    x = 95,547.60

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1.5x scale

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.