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Finding the Fourth Proportional to 121,678.48, 182,547.04 and 38,572.48

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Solution

The fourth proportional to 121,678.48, 182,547.04 and 38,572.48 is: 57,868.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,678.48 : 182,547.04 = 38,572.48 : x
  2. Step 2: Convert to fraction form
    121,678.48/182,547.04 = 38,572.48/x
  3. Step 3: Cross multiply
    121,678.48x = 182,547.04 × 38,572.48
  4. Step 4: Simplify right side
    121,678.48x = 7,041,292,049.46
  5. Step 5: Solve for x
    x = 7,041,292,049.46/121,678.48
  6. Step 6: Final answer
    x = 57,868.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.