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Finding the Fourth Proportional to 127,642.71, 191,582.27 and 64,507.26

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Solution

The fourth proportional to 127,642.71, 191,582.27 and 64,507.26 is: 96,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,642.71 : 191,582.27 = 64,507.26 : x
  2. Step 2: Convert to fraction form
    127,642.71/191,582.27 = 64,507.26/x
  3. Step 3: Cross multiply
    127,642.71x = 191,582.27 × 64,507.26
  4. Step 4: Simplify right side
    127,642.71x = 12,358,447,302.28
  5. Step 5: Solve for x
    x = 12,358,447,302.28/127,642.71
  6. Step 6: Final answer
    x = 96,820.63

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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.