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Finding the Fourth Proportional to 108,615.60, 162,923.40 and 88,916.40

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Solution

The fourth proportional to 108,615.60, 162,923.40 and 88,916.40 is: 133,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,615.60 : 162,923.40 = 88,916.40 : x
  2. Step 2: Convert to fraction form
    108,615.60/162,923.40 = 88,916.40/x
  3. Step 3: Cross multiply
    108,615.60x = 162,923.40 × 88,916.40
  4. Step 4: Simplify right side
    108,615.60x = 14,486,562,203.76
  5. Step 5: Solve for x
    x = 14,486,562,203.76/108,615.60
  6. Step 6: Final answer
    x = 133,374.60

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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.