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Finding the Fourth Proportional to 125,007.60, 172,510.95 and 67,646.92

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Solution

The fourth proportional to 125,007.60, 172,510.95 and 67,646.92 is: 93,352.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,007.60 : 172,510.95 = 67,646.92 : x
  2. Step 2: Convert to fraction form
    125,007.60/172,510.95 = 67,646.92/x
  3. Step 3: Cross multiply
    125,007.60x = 172,510.95 × 67,646.92
  4. Step 4: Simplify right side
    125,007.60x = 11,669,833,748.82
  5. Step 5: Solve for x
    x = 11,669,833,748.82/125,007.60
  6. Step 6: Final answer
    x = 93,352.99

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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.