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Finding the Fourth Proportional to 108,303.92, 162,455.88 and 71,359.28

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Solution

The fourth proportional to 108,303.92, 162,455.88 and 71,359.28 is: 107,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,303.92 : 162,455.88 = 71,359.28 : x
  2. Step 2: Convert to fraction form
    108,303.92/162,455.88 = 71,359.28/x
  3. Step 3: Cross multiply
    108,303.92x = 162,455.88 × 71,359.28
  4. Step 4: Simplify right side
    108,303.92x = 11,592,734,628.57
  5. Step 5: Solve for x
    x = 11,592,734,628.57/108,303.92
  6. Step 6: Final answer
    x = 107,038.92

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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.