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Finding the Fourth Proportional to 127,754.88, 191,457.60 and 65,294.40

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Solution

The fourth proportional to 127,754.88, 191,457.60 and 65,294.40 is: 97,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,754.88 : 191,457.60 = 65,294.40 : x
  2. Step 2: Convert to fraction form
    127,754.88/191,457.60 = 65,294.40/x
  3. Step 3: Cross multiply
    127,754.88x = 191,457.60 × 65,294.40
  4. Step 4: Simplify right side
    127,754.88x = 12,501,109,117.44
  5. Step 5: Solve for x
    x = 12,501,109,117.44/127,754.88
  6. Step 6: Final answer
    x = 97,852.30

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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.