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Finding the Fourth Proportional to 124,655.60, 186,983.40 and 40,415.60

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Solution

The fourth proportional to 124,655.60, 186,983.40 and 40,415.60 is: 60,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,655.60 : 186,983.40 = 40,415.60 : x
  2. Step 2: Convert to fraction form
    124,655.60/186,983.40 = 40,415.60/x
  3. Step 3: Cross multiply
    124,655.60x = 186,983.40 × 40,415.60
  4. Step 4: Simplify right side
    124,655.60x = 7,557,046,301.04
  5. Step 5: Solve for x
    x = 7,557,046,301.04/124,655.60
  6. Step 6: Final answer
    x = 60,623.40

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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.