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Finding the Fourth Proportional to 207,031.46, 310,547.32 and 64,887.82

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Solution

The fourth proportional to 207,031.46, 310,547.32 and 64,887.82 is: 97,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,031.46 : 310,547.32 = 64,887.82 : x
  2. Step 2: Convert to fraction form
    207,031.46/310,547.32 = 64,887.82/x
  3. Step 3: Cross multiply
    207,031.46x = 310,547.32 × 64,887.82
  4. Step 4: Simplify right side
    207,031.46x = 20,150,739,070.94
  5. Step 5: Solve for x
    x = 20,150,739,070.94/207,031.46
  6. Step 6: Final answer
    x = 97,331.77

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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.