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Finding the Fourth Proportional to 86,898.92, 130,397.69 and 46,917.37

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Solution

The fourth proportional to 86,898.92, 130,397.69 and 46,917.37 is: 70,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,898.92 : 130,397.69 = 46,917.37 : x
  2. Step 2: Convert to fraction form
    86,898.92/130,397.69 = 46,917.37/x
  3. Step 3: Cross multiply
    86,898.92x = 130,397.69 × 46,917.37
  4. Step 4: Simplify right side
    86,898.92x = 6,117,916,108.29
  5. Step 5: Solve for x
    x = 6,117,916,108.29/86,898.92
  6. Step 6: Final answer
    x = 70,402.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.