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Finding the Fourth Proportional to 107,528, 148,388.64 and 60,424

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Solution

The fourth proportional to 107,528, 148,388.64 and 60,424 is: 83,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,528 : 148,388.64 = 60,424 : x
  2. Step 2: Convert to fraction form
    107,528/148,388.64 = 60,424/x
  3. Step 3: Cross multiply
    107,528x = 148,388.64 × 60,424
  4. Step 4: Simplify right side
    107,528x = 8,966,235,183.36
  5. Step 5: Solve for x
    x = 8,966,235,183.36/107,528
  6. Step 6: Final answer
    x = 83,385.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.