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Finding the Fourth Proportional to 86,730.79, 119,686.93 and 49,004.23

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Solution

The fourth proportional to 86,730.79, 119,686.93 and 49,004.23 is: 67,624.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,730.79 : 119,686.93 = 49,004.23 : x
  2. Step 2: Convert to fraction form
    86,730.79/119,686.93 = 49,004.23/x
  3. Step 3: Cross multiply
    86,730.79x = 119,686.93 × 49,004.23
  4. Step 4: Simplify right side
    86,730.79x = 5,865,165,845.71
  5. Step 5: Solve for x
    x = 5,865,165,845.71/86,730.79
  6. Step 6: Final answer
    x = 67,624.96

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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.