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Finding the Fourth Proportional to 348,355.13, 522,620.51 and 99,037.13

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Solution

The fourth proportional to 348,355.13, 522,620.51 and 99,037.13 is: 148,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,355.13 : 522,620.51 = 99,037.13 : x
  2. Step 2: Convert to fraction form
    348,355.13/522,620.51 = 99,037.13/x
  3. Step 3: Cross multiply
    348,355.13x = 522,620.51 × 99,037.13
  4. Step 4: Simplify right side
    348,355.13x = 51,758,832,281.25
  5. Step 5: Solve for x
    x = 51,758,832,281.25/348,355.13
  6. Step 6: Final answer
    x = 148,580.65

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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.