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Finding the Fourth Proportional to 84,552.69, 116,417.16 and 71,779.41

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Solution

The fourth proportional to 84,552.69, 116,417.16 and 71,779.41 is: 98,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,552.69 : 116,417.16 = 71,779.41 : x
  2. Step 2: Convert to fraction form
    84,552.69/116,417.16 = 71,779.41/x
  3. Step 3: Cross multiply
    84,552.69x = 116,417.16 × 71,779.41
  4. Step 4: Simplify right side
    84,552.69x = 8,356,355,058.68
  5. Step 5: Solve for x
    x = 8,356,355,058.68/84,552.69
  6. Step 6: Final answer
    x = 98,830.15

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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.