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Finding the Fourth Proportional to 88,772.40, 133,139.40 and 38,852.40

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Solution

The fourth proportional to 88,772.40, 133,139.40 and 38,852.40 is: 58,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,772.40 : 133,139.40 = 38,852.40 : x
  2. Step 2: Convert to fraction form
    88,772.40/133,139.40 = 38,852.40/x
  3. Step 3: Cross multiply
    88,772.40x = 133,139.40 × 38,852.40
  4. Step 4: Simplify right side
    88,772.40x = 5,172,785,224.56
  5. Step 5: Solve for x
    x = 5,172,785,224.56/88,772.40
  6. Step 6: Final answer
    x = 58,270.20

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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.