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Finding the Fourth Proportional to 336,349.80, 504,526.50 and 87,031.80

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Solution

The fourth proportional to 336,349.80, 504,526.50 and 87,031.80 is: 130,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,349.80 : 504,526.50 = 87,031.80 : x
  2. Step 2: Convert to fraction form
    336,349.80/504,526.50 = 87,031.80/x
  3. Step 3: Cross multiply
    336,349.80x = 504,526.50 × 87,031.80
  4. Step 4: Simplify right side
    336,349.80x = 43,909,849,442.70
  5. Step 5: Solve for x
    x = 43,909,849,442.70/336,349.80
  6. Step 6: Final answer
    x = 130,548.17

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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.