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Finding the Fourth Proportional to 585,398.85, 878,031.18 and 153,158.04

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Solution

The fourth proportional to 585,398.85, 878,031.18 and 153,158.04 is: 229,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,398.85 : 878,031.18 = 153,158.04 : x
  2. Step 2: Convert to fraction form
    585,398.85/878,031.18 = 153,158.04/x
  3. Step 3: Cross multiply
    585,398.85x = 878,031.18 × 153,158.04
  4. Step 4: Simplify right side
    585,398.85x = 134,477,534,587.69
  5. Step 5: Solve for x
    x = 134,477,534,587.69/585,398.85
  6. Step 6: Final answer
    x = 229,719.51

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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.