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Finding the Fourth Proportional to 78,368.70, 108,150.96 and 46,105.60

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Solution

The fourth proportional to 78,368.70, 108,150.96 and 46,105.60 is: 63,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,368.70 : 108,150.96 = 46,105.60 : x
  2. Step 2: Convert to fraction form
    78,368.70/108,150.96 = 46,105.60/x
  3. Step 3: Cross multiply
    78,368.70x = 108,150.96 × 46,105.60
  4. Step 4: Simplify right side
    78,368.70x = 4,986,364,901.38
  5. Step 5: Solve for x
    x = 4,986,364,901.38/78,368.70
  6. Step 6: Final answer
    x = 63,627.00

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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.