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Finding the Fourth Proportional to 82,904.80, 124,162.80 and 56,466.40

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Solution

The fourth proportional to 82,904.80, 124,162.80 and 56,466.40 is: 84,567.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,904.80 : 124,162.80 = 56,466.40 : x
  2. Step 2: Convert to fraction form
    82,904.80/124,162.80 = 56,466.40/x
  3. Step 3: Cross multiply
    82,904.80x = 124,162.80 × 56,466.40
  4. Step 4: Simplify right side
    82,904.80x = 7,011,026,329.92
  5. Step 5: Solve for x
    x = 7,011,026,329.92/82,904.80
  6. Step 6: Final answer
    x = 84,567.19

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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.