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Finding the Fourth Proportional to 346,862.16, 520,281.36 and 147,053.88

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Solution

The fourth proportional to 346,862.16, 520,281.36 and 147,053.88 is: 220,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,862.16 : 520,281.36 = 147,053.88 : x
  2. Step 2: Convert to fraction form
    346,862.16/520,281.36 = 147,053.88/x
  3. Step 3: Cross multiply
    346,862.16x = 520,281.36 × 147,053.88
  4. Step 4: Simplify right side
    346,862.16x = 76,509,392,679.68
  5. Step 5: Solve for x
    x = 76,509,392,679.68/346,862.16
  6. Step 6: Final answer
    x = 220,575.78

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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.