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Finding the Fourth Proportional to 188,507.59, 260,140.76 and 103,625.17

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Solution

The fourth proportional to 188,507.59, 260,140.76 and 103,625.17 is: 143,002.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,507.59 : 260,140.76 = 103,625.17 : x
  2. Step 2: Convert to fraction form
    188,507.59/260,140.76 = 103,625.17/x
  3. Step 3: Cross multiply
    188,507.59x = 260,140.76 × 103,625.17
  4. Step 4: Simplify right side
    188,507.59x = 26,957,130,478.93
  5. Step 5: Solve for x
    x = 26,957,130,478.93/188,507.59
  6. Step 6: Final answer
    x = 143,002.89

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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.