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Finding the Fourth Proportional to 61,521.80, 92,225.10 and 48,187.40

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Solution

The fourth proportional to 61,521.80, 92,225.10 and 48,187.40 is: 72,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,521.80 : 92,225.10 = 48,187.40 : x
  2. Step 2: Convert to fraction form
    61,521.80/92,225.10 = 48,187.40/x
  3. Step 3: Cross multiply
    61,521.80x = 92,225.10 × 48,187.40
  4. Step 4: Simplify right side
    61,521.80x = 4,444,087,783.74
  5. Step 5: Solve for x
    x = 4,444,087,783.74/61,521.80
  6. Step 6: Final answer
    x = 72,235.98

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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.