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Finding the Fourth Proportional to 157,154.55, 216,849.15 and 88,247.58

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Solution

The fourth proportional to 157,154.55, 216,849.15 and 88,247.58 is: 121,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,154.55 : 216,849.15 = 88,247.58 : x
  2. Step 2: Convert to fraction form
    157,154.55/216,849.15 = 88,247.58/x
  3. Step 3: Cross multiply
    157,154.55x = 216,849.15 × 88,247.58
  4. Step 4: Simplify right side
    157,154.55x = 19,136,412,712.56
  5. Step 5: Solve for x
    x = 19,136,412,712.56/157,154.55
  6. Step 6: Final answer
    x = 121,768.11

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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.