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Finding the Fourth Proportional to 236,875.72, 355,453.50 and 87,221.08

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Solution

The fourth proportional to 236,875.72, 355,453.50 and 87,221.08 is: 130,883.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,875.72 : 355,453.50 = 87,221.08 : x
  2. Step 2: Convert to fraction form
    236,875.72/355,453.50 = 87,221.08/x
  3. Step 3: Cross multiply
    236,875.72x = 355,453.50 × 87,221.08
  4. Step 4: Simplify right side
    236,875.72x = 31,003,038,159.78
  5. Step 5: Solve for x
    x = 31,003,038,159.78/236,875.72
  6. Step 6: Final answer
    x = 130,883.14

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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.