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Finding the Fourth Proportional to 157,012.80, 216,601.56 and 93,305.52

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Solution

The fourth proportional to 157,012.80, 216,601.56 and 93,305.52 is: 128,716.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,012.80 : 216,601.56 = 93,305.52 : x
  2. Step 2: Convert to fraction form
    157,012.80/216,601.56 = 93,305.52/x
  3. Step 3: Cross multiply
    157,012.80x = 216,601.56 × 93,305.52
  4. Step 4: Simplify right side
    157,012.80x = 20,210,121,188.61
  5. Step 5: Solve for x
    x = 20,210,121,188.61/157,012.80
  6. Step 6: Final answer
    x = 128,716.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.