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Finding the Fourth Proportional to 78,560.38, 108,394.40 and 46,296.32

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Solution

The fourth proportional to 78,560.38, 108,394.40 and 46,296.32 is: 63,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,560.38 : 108,394.40 = 46,296.32 : x
  2. Step 2: Convert to fraction form
    78,560.38/108,394.40 = 46,296.32/x
  3. Step 3: Cross multiply
    78,560.38x = 108,394.40 × 46,296.32
  4. Step 4: Simplify right side
    78,560.38x = 5,018,261,828.61
  5. Step 5: Solve for x
    x = 5,018,261,828.61/78,560.38
  6. Step 6: Final answer
    x = 63,877.77

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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.