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Finding the Fourth Proportional to 302,040.40, 453,125.40 and 91,699.60

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Solution

The fourth proportional to 302,040.40, 453,125.40 and 91,699.60 is: 137,569.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,040.40 : 453,125.40 = 91,699.60 : x
  2. Step 2: Convert to fraction form
    302,040.40/453,125.40 = 91,699.60/x
  3. Step 3: Cross multiply
    302,040.40x = 453,125.40 × 91,699.60
  4. Step 4: Simplify right side
    302,040.40x = 41,551,417,929.84
  5. Step 5: Solve for x
    x = 41,551,417,929.84/302,040.40
  6. Step 6: Final answer
    x = 137,569.07

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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.