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Finding the Fourth Proportional to 127,841.40, 191,762.10 and 96,737.40

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Solution

The fourth proportional to 127,841.40, 191,762.10 and 96,737.40 is: 145,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,841.40 : 191,762.10 = 96,737.40 : x
  2. Step 2: Convert to fraction form
    127,841.40/191,762.10 = 96,737.40/x
  3. Step 3: Cross multiply
    127,841.40x = 191,762.10 × 96,737.40
  4. Step 4: Simplify right side
    127,841.40x = 18,550,566,972.54
  5. Step 5: Solve for x
    x = 18,550,566,972.54/127,841.40
  6. Step 6: Final answer
    x = 145,106.10

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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.