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Finding the Fourth Proportional to 127,641.71, 191,580.77 and 64,506.26

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Solution

The fourth proportional to 127,641.71, 191,580.77 and 64,506.26 is: 96,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,641.71 : 191,580.77 = 64,506.26 : x
  2. Step 2: Convert to fraction form
    127,641.71/191,580.77 = 64,506.26/x
  3. Step 3: Cross multiply
    127,641.71x = 191,580.77 × 64,506.26
  4. Step 4: Simplify right side
    127,641.71x = 12,358,159,600.84
  5. Step 5: Solve for x
    x = 12,358,159,600.84/127,641.71
  6. Step 6: Final answer
    x = 96,819.13

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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.