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Finding the Fourth Proportional to 78,497.93, 108,289.05 and 46,644.27

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Solution

The fourth proportional to 78,497.93, 108,289.05 and 46,644.27 is: 64,346.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,497.93 : 108,289.05 = 46,644.27 : x
  2. Step 2: Convert to fraction form
    78,497.93/108,289.05 = 46,644.27/x
  3. Step 3: Cross multiply
    78,497.93x = 108,289.05 × 46,644.27
  4. Step 4: Simplify right side
    78,497.93x = 5,051,063,686.24
  5. Step 5: Solve for x
    x = 5,051,063,686.24/78,497.93
  6. Step 6: Final answer
    x = 64,346.46

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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.