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Finding the Fourth Proportional to 74,466.72, 102,658.32 and 59,225.76

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Solution

The fourth proportional to 74,466.72, 102,658.32 and 59,225.76 is: 81,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,466.72 : 102,658.32 = 59,225.76 : x
  2. Step 2: Convert to fraction form
    74,466.72/102,658.32 = 59,225.76/x
  3. Step 3: Cross multiply
    74,466.72x = 102,658.32 × 59,225.76
  4. Step 4: Simplify right side
    74,466.72x = 6,080,017,022.32
  5. Step 5: Solve for x
    x = 6,080,017,022.32/74,466.72
  6. Step 6: Final answer
    x = 81,647.44

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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.