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Finding the Fourth Proportional to 75,397.60, 112,966.80 and 49,088.80

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Solution

The fourth proportional to 75,397.60, 112,966.80 and 49,088.80 is: 73,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,397.60 : 112,966.80 = 49,088.80 : x
  2. Step 2: Convert to fraction form
    75,397.60/112,966.80 = 49,088.80/x
  3. Step 3: Cross multiply
    75,397.60x = 112,966.80 × 49,088.80
  4. Step 4: Simplify right side
    75,397.60x = 5,545,404,651.84
  5. Step 5: Solve for x
    x = 5,545,404,651.84/75,397.60
  6. Step 6: Final answer
    x = 73,548.82

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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.