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Finding the Fourth Proportional to 60,342.42, 90,484.40 and 35,390.64

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Solution

The fourth proportional to 60,342.42, 90,484.40 and 35,390.64 is: 53,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,342.42 : 90,484.40 = 35,390.64 : x
  2. Step 2: Convert to fraction form
    60,342.42/90,484.40 = 35,390.64/x
  3. Step 3: Cross multiply
    60,342.42x = 90,484.40 × 35,390.64
  4. Step 4: Simplify right side
    60,342.42x = 3,202,300,826.02
  5. Step 5: Solve for x
    x = 3,202,300,826.02/60,342.42
  6. Step 6: Final answer
    x = 53,068.82

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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.