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Finding the Fourth Proportional to 353,167.40, 529,751.10 and 86,924.45

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Solution

The fourth proportional to 353,167.40, 529,751.10 and 86,924.45 is: 130,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,167.40 : 529,751.10 = 86,924.45 : x
  2. Step 2: Convert to fraction form
    353,167.40/529,751.10 = 86,924.45/x
  3. Step 3: Cross multiply
    353,167.40x = 529,751.10 × 86,924.45
  4. Step 4: Simplify right side
    353,167.40x = 46,048,323,004.40
  5. Step 5: Solve for x
    x = 46,048,323,004.40/353,167.40
  6. Step 6: Final answer
    x = 130,386.68

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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.