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Finding the Fourth Proportional to 82,878.80, 114,333.56 and 56,030.72

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Solution

The fourth proportional to 82,878.80, 114,333.56 and 56,030.72 is: 77,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,878.80 : 114,333.56 = 56,030.72 : x
  2. Step 2: Convert to fraction form
    82,878.80/114,333.56 = 56,030.72/x
  3. Step 3: Cross multiply
    82,878.80x = 114,333.56 × 56,030.72
  4. Step 4: Simplify right side
    82,878.80x = 6,406,191,686.96
  5. Step 5: Solve for x
    x = 6,406,191,686.96/82,878.80
  6. Step 6: Final answer
    x = 77,295.90

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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.