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Finding the Fourth Proportional to 127,307.20, 190,960.80 and 97,873.60

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Solution

The fourth proportional to 127,307.20, 190,960.80 and 97,873.60 is: 146,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,307.20 : 190,960.80 = 97,873.60 : x
  2. Step 2: Convert to fraction form
    127,307.20/190,960.80 = 97,873.60/x
  3. Step 3: Cross multiply
    127,307.20x = 190,960.80 × 97,873.60
  4. Step 4: Simplify right side
    127,307.20x = 18,690,020,954.88
  5. Step 5: Solve for x
    x = 18,690,020,954.88/127,307.20
  6. Step 6: Final answer
    x = 146,810.40

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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.