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Finding the Fourth Proportional to 99,484, 137,316.80 and 59,225.92

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Solution

The fourth proportional to 99,484, 137,316.80 and 59,225.92 is: 81,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,484 : 137,316.80 = 59,225.92 : x
  2. Step 2: Convert to fraction form
    99,484/137,316.80 = 59,225.92/x
  3. Step 3: Cross multiply
    99,484x = 137,316.80 × 59,225.92
  4. Step 4: Simplify right side
    99,484x = 8,132,713,811.46
  5. Step 5: Solve for x
    x = 8,132,713,811.46/99,484
  6. Step 6: Final answer
    x = 81,748.96

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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.