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Finding the Fourth Proportional to 104,430.68, 144,063.60 and 61,959.16

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Solution

The fourth proportional to 104,430.68, 144,063.60 and 61,959.16 is: 85,473.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,430.68 : 144,063.60 = 61,959.16 : x
  2. Step 2: Convert to fraction form
    104,430.68/144,063.60 = 61,959.16/x
  3. Step 3: Cross multiply
    104,430.68x = 144,063.60 × 61,959.16
  4. Step 4: Simplify right side
    104,430.68x = 8,926,059,642.58
  5. Step 5: Solve for x
    x = 8,926,059,642.58/104,430.68
  6. Step 6: Final answer
    x = 85,473.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.