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Finding the Fourth Proportional to 353,680, 530,534.64 and 104,362

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Solution

The fourth proportional to 353,680, 530,534.64 and 104,362 is: 156,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,680 : 530,534.64 = 104,362 : x
  2. Step 2: Convert to fraction form
    353,680/530,534.64 = 104,362/x
  3. Step 3: Cross multiply
    353,680x = 530,534.64 × 104,362
  4. Step 4: Simplify right side
    353,680x = 55,367,656,099.68
  5. Step 5: Solve for x
    x = 55,367,656,099.68/353,680
  6. Step 6: Final answer
    x = 156,547.32

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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.