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Finding the Fourth Proportional to 144,927.60, 217,482.60 and 61,820.40

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Solution

The fourth proportional to 144,927.60, 217,482.60 and 61,820.40 is: 92,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,927.60 : 217,482.60 = 61,820.40 : x
  2. Step 2: Convert to fraction form
    144,927.60/217,482.60 = 61,820.40/x
  3. Step 3: Cross multiply
    144,927.60x = 217,482.60 × 61,820.40
  4. Step 4: Simplify right side
    144,927.60x = 13,444,861,325.04
  5. Step 5: Solve for x
    x = 13,444,861,325.04/144,927.60
  6. Step 6: Final answer
    x = 92,769.50

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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.