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Finding the Fourth Proportional to 84,685.86, 116,870.76 and 46,960.20

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Solution

The fourth proportional to 84,685.86, 116,870.76 and 46,960.20 is: 64,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.86 : 116,870.76 = 46,960.20 : x
  2. Step 2: Convert to fraction form
    84,685.86/116,870.76 = 46,960.20/x
  3. Step 3: Cross multiply
    84,685.86x = 116,870.76 × 46,960.20
  4. Step 4: Simplify right side
    84,685.86x = 5,488,274,263.75
  5. Step 5: Solve for x
    x = 5,488,274,263.75/84,685.86
  6. Step 6: Final answer
    x = 64,807.45

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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.