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Finding the Fourth Proportional to 85,804.91, 118,279.51 and 60,239.55

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Solution

The fourth proportional to 85,804.91, 118,279.51 and 60,239.55 is: 83,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,804.91 : 118,279.51 = 60,239.55 : x
  2. Step 2: Convert to fraction form
    85,804.91/118,279.51 = 60,239.55/x
  3. Step 3: Cross multiply
    85,804.91x = 118,279.51 × 60,239.55
  4. Step 4: Simplify right side
    85,804.91x = 7,125,104,155.42
  5. Step 5: Solve for x
    x = 7,125,104,155.42/85,804.91
  6. Step 6: Final answer
    x = 83,038.42

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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.