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Finding the Fourth Proportional to 188,616.71, 260,245.50 and 119,681.04

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Solution

The fourth proportional to 188,616.71, 260,245.50 and 119,681.04 is: 165,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,616.71 : 260,245.50 = 119,681.04 : x
  2. Step 2: Convert to fraction form
    188,616.71/260,245.50 = 119,681.04/x
  3. Step 3: Cross multiply
    188,616.71x = 260,245.50 × 119,681.04
  4. Step 4: Simplify right side
    188,616.71x = 31,146,452,095.32
  5. Step 5: Solve for x
    x = 31,146,452,095.32/188,616.71
  6. Step 6: Final answer
    x = 165,130.93

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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.