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Finding the Fourth Proportional to 124,480.80, 171,776.76 and 70,758.36

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Solution

The fourth proportional to 124,480.80, 171,776.76 and 70,758.36 is: 97,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,480.80 : 171,776.76 = 70,758.36 : x
  2. Step 2: Convert to fraction form
    124,480.80/171,776.76 = 70,758.36/x
  3. Step 3: Cross multiply
    124,480.80x = 171,776.76 × 70,758.36
  4. Step 4: Simplify right side
    124,480.80x = 12,154,641,823.71
  5. Step 5: Solve for x
    x = 12,154,641,823.71/124,480.80
  6. Step 6: Final answer
    x = 97,642.70

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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.