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Finding the Fourth Proportional to 136,637.20, 205,393.20 and 97,465.60

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Solution

The fourth proportional to 136,637.20, 205,393.20 and 97,465.60 is: 146,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,637.20 : 205,393.20 = 97,465.60 : x
  2. Step 2: Convert to fraction form
    136,637.20/205,393.20 = 97,465.60/x
  3. Step 3: Cross multiply
    136,637.20x = 205,393.20 × 97,465.60
  4. Step 4: Simplify right side
    136,637.20x = 20,018,771,473.92
  5. Step 5: Solve for x
    x = 20,018,771,473.92/136,637.20
  6. Step 6: Final answer
    x = 146,510.40

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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.