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Finding the Fourth Proportional to 99,925.75, 137,891.66 and 54,594.71

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Solution

The fourth proportional to 99,925.75, 137,891.66 and 54,594.71 is: 75,337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,925.75 : 137,891.66 = 54,594.71 : x
  2. Step 2: Convert to fraction form
    99,925.75/137,891.66 = 54,594.71/x
  3. Step 3: Cross multiply
    99,925.75x = 137,891.66 × 54,594.71
  4. Step 4: Simplify right side
    99,925.75x = 7,528,154,636.15
  5. Step 5: Solve for x
    x = 7,528,154,636.15/99,925.75
  6. Step 6: Final answer
    x = 75,337.49

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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.