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Finding the Fourth Proportional to 144,956.40, 217,434.60 and 124,220.40

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Solution

The fourth proportional to 144,956.40, 217,434.60 and 124,220.40 is: 186,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,956.40 : 217,434.60 = 124,220.40 : x
  2. Step 2: Convert to fraction form
    144,956.40/217,434.60 = 124,220.40/x
  3. Step 3: Cross multiply
    144,956.40x = 217,434.60 × 124,220.40
  4. Step 4: Simplify right side
    144,956.40x = 27,009,812,985.84
  5. Step 5: Solve for x
    x = 27,009,812,985.84/144,956.40
  6. Step 6: Final answer
    x = 186,330.60

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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.