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Finding the Fourth Proportional to 125,990.52, 173,866.88 and 69,403.08

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Solution

The fourth proportional to 125,990.52, 173,866.88 and 69,403.08 is: 95,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,990.52 : 173,866.88 = 69,403.08 : x
  2. Step 2: Convert to fraction form
    125,990.52/173,866.88 = 69,403.08/x
  3. Step 3: Cross multiply
    125,990.52x = 173,866.88 × 69,403.08
  4. Step 4: Simplify right side
    125,990.52x = 12,066,896,981.99
  5. Step 5: Solve for x
    x = 12,066,896,981.99/125,990.52
  6. Step 6: Final answer
    x = 95,776.23

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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.