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Finding the Fourth Proportional to 348,478.96, 522,718.44 and 99,160.96

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Solution

The fourth proportional to 348,478.96, 522,718.44 and 99,160.96 is: 148,741.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,478.96 : 522,718.44 = 99,160.96 : x
  2. Step 2: Convert to fraction form
    348,478.96/522,718.44 = 99,160.96/x
  3. Step 3: Cross multiply
    348,478.96x = 522,718.44 × 99,160.96
  4. Step 4: Simplify right side
    348,478.96x = 51,833,262,320.10
  5. Step 5: Solve for x
    x = 51,833,262,320.10/348,478.96
  6. Step 6: Final answer
    x = 148,741.44

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1.5x scale

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.