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Finding the Fourth Proportional to 223,726.64, 308,742.75 and 123,124.64

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Solution

The fourth proportional to 223,726.64, 308,742.75 and 123,124.64 is: 169,911.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,726.64 : 308,742.75 = 123,124.64 : x
  2. Step 2: Convert to fraction form
    223,726.64/308,742.75 = 123,124.64/x
  3. Step 3: Cross multiply
    223,726.64x = 308,742.75 × 123,124.64
  4. Step 4: Simplify right side
    223,726.64x = 38,013,838,402.65
  5. Step 5: Solve for x
    x = 38,013,838,402.65/223,726.64
  6. Step 6: Final answer
    x = 169,911.99

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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.