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Finding the Fourth Proportional to 125,510.46, 187,362.78 and 107,547.72

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Solution

The fourth proportional to 125,510.46, 187,362.78 and 107,547.72 is: 160,547.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,510.46 : 187,362.78 = 107,547.72 : x
  2. Step 2: Convert to fraction form
    125,510.46/187,362.78 = 107,547.72/x
  3. Step 3: Cross multiply
    125,510.46x = 187,362.78 × 107,547.72
  4. Step 4: Simplify right side
    125,510.46x = 20,150,439,801.86
  5. Step 5: Solve for x
    x = 20,150,439,801.86/125,510.46
  6. Step 6: Final answer
    x = 160,547.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.