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Finding the Fourth Proportional to 107,532, 148,394.16 and 60,428

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Solution

The fourth proportional to 107,532, 148,394.16 and 60,428 is: 83,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,532 : 148,394.16 = 60,428 : x
  2. Step 2: Convert to fraction form
    107,532/148,394.16 = 60,428/x
  3. Step 3: Cross multiply
    107,532x = 148,394.16 × 60,428
  4. Step 4: Simplify right side
    107,532x = 8,967,162,300.48
  5. Step 5: Solve for x
    x = 8,967,162,300.48/107,532
  6. Step 6: Final answer
    x = 83,390.64

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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.