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Finding the Fourth Proportional to 127,369.60, 191,248.80 and 97,820.80

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Solution

The fourth proportional to 127,369.60, 191,248.80 and 97,820.80 is: 146,880.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,369.60 : 191,248.80 = 97,820.80 : x
  2. Step 2: Convert to fraction form
    127,369.60/191,248.80 = 97,820.80/x
  3. Step 3: Cross multiply
    127,369.60x = 191,248.80 × 97,820.80
  4. Step 4: Simplify right side
    127,369.60x = 18,708,110,615.04
  5. Step 5: Solve for x
    x = 18,708,110,615.04/127,369.60
  6. Step 6: Final answer
    x = 146,880.50

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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.