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Finding the Fourth Proportional to 97,703.60, 146,555.40 and 84,340.40

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Solution

The fourth proportional to 97,703.60, 146,555.40 and 84,340.40 is: 126,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,703.60 : 146,555.40 = 84,340.40 : x
  2. Step 2: Convert to fraction form
    97,703.60/146,555.40 = 84,340.40/x
  3. Step 3: Cross multiply
    97,703.60x = 146,555.40 × 84,340.40
  4. Step 4: Simplify right side
    97,703.60x = 12,360,541,058.16
  5. Step 5: Solve for x
    x = 12,360,541,058.16/97,703.60
  6. Step 6: Final answer
    x = 126,510.60

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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.