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Finding the Fourth Proportional to 124,656.80, 186,985.20 and 96,663.20

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Solution

The fourth proportional to 124,656.80, 186,985.20 and 96,663.20 is: 144,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,656.80 : 186,985.20 = 96,663.20 : x
  2. Step 2: Convert to fraction form
    124,656.80/186,985.20 = 96,663.20/x
  3. Step 3: Cross multiply
    124,656.80x = 186,985.20 × 96,663.20
  4. Step 4: Simplify right side
    124,656.80x = 18,074,587,784.64
  5. Step 5: Solve for x
    x = 18,074,587,784.64/124,656.80
  6. Step 6: Final answer
    x = 144,994.80

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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.