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Finding the Fourth Proportional to 125,959.42, 173,812.56 and 74,963.92

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Solution

The fourth proportional to 125,959.42, 173,812.56 and 74,963.92 is: 103,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,959.42 : 173,812.56 = 74,963.92 : x
  2. Step 2: Convert to fraction form
    125,959.42/173,812.56 = 74,963.92/x
  3. Step 3: Cross multiply
    125,959.42x = 173,812.56 × 74,963.92
  4. Step 4: Simplify right side
    125,959.42x = 13,029,671,152.77
  5. Step 5: Solve for x
    x = 13,029,671,152.77/125,959.42
  6. Step 6: Final answer
    x = 103,443.40

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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.