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Finding the Fourth Proportional to 85,407.93, 117,853.95 and 49,590.93

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Solution

The fourth proportional to 85,407.93, 117,853.95 and 49,590.93 is: 68,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,407.93 : 117,853.95 = 49,590.93 : x
  2. Step 2: Convert to fraction form
    85,407.93/117,853.95 = 49,590.93/x
  3. Step 3: Cross multiply
    85,407.93x = 117,853.95 × 49,590.93
  4. Step 4: Simplify right side
    85,407.93x = 5,844,486,984.67
  5. Step 5: Solve for x
    x = 5,844,486,984.67/85,407.93
  6. Step 6: Final answer
    x = 68,430.26

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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.