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Finding the Fourth Proportional to 85,281.80, 117,641.63 and 59,826.06

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Solution

The fourth proportional to 85,281.80, 117,641.63 and 59,826.06 is: 82,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,281.80 : 117,641.63 = 59,826.06 : x
  2. Step 2: Convert to fraction form
    85,281.80/117,641.63 = 59,826.06/x
  3. Step 3: Cross multiply
    85,281.80x = 117,641.63 × 59,826.06
  4. Step 4: Simplify right side
    85,281.80x = 7,038,035,364.44
  5. Step 5: Solve for x
    x = 7,038,035,364.44/85,281.80
  6. Step 6: Final answer
    x = 82,526.82

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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.