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Finding the Fourth Proportional to 85,656.76, 118,209.48 and 46,897.28

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Solution

The fourth proportional to 85,656.76, 118,209.48 and 46,897.28 is: 64,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,656.76 : 118,209.48 = 46,897.28 : x
  2. Step 2: Convert to fraction form
    85,656.76/118,209.48 = 46,897.28/x
  3. Step 3: Cross multiply
    85,656.76x = 118,209.48 × 46,897.28
  4. Step 4: Simplify right side
    85,656.76x = 5,543,702,758.59
  5. Step 5: Solve for x
    x = 5,543,702,758.59/85,656.76
  6. Step 6: Final answer
    x = 64,719.97

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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.