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Finding the Fourth Proportional to 500,588.10, 750,875.54 and 121,511.81

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Solution

The fourth proportional to 500,588.10, 750,875.54 and 121,511.81 is: 182,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,588.10 : 750,875.54 = 121,511.81 : x
  2. Step 2: Convert to fraction form
    500,588.10/750,875.54 = 121,511.81/x
  3. Step 3: Cross multiply
    500,588.10x = 750,875.54 × 121,511.81
  4. Step 4: Simplify right side
    500,588.10x = 91,240,247,219.76
  5. Step 5: Solve for x
    x = 91,240,247,219.76/500,588.10
  6. Step 6: Final answer
    x = 182,266.11

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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.