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Finding the Fourth Proportional to 169,663.68, 233,978.40 and 109,127.52

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Solution

The fourth proportional to 169,663.68, 233,978.40 and 109,127.52 is: 150,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,663.68 : 233,978.40 = 109,127.52 : x
  2. Step 2: Convert to fraction form
    169,663.68/233,978.40 = 109,127.52/x
  3. Step 3: Cross multiply
    169,663.68x = 233,978.40 × 109,127.52
  4. Step 4: Simplify right side
    169,663.68x = 25,533,482,525.57
  5. Step 5: Solve for x
    x = 25,533,482,525.57/169,663.68
  6. Step 6: Final answer
    x = 150,494.69

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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.