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Finding the Fourth Proportional to 121,417.39, 182,126.09 and 65,283.94

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Solution

The fourth proportional to 121,417.39, 182,126.09 and 65,283.94 is: 97,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,417.39 : 182,126.09 = 65,283.94 : x
  2. Step 2: Convert to fraction form
    121,417.39/182,126.09 = 65,283.94/x
  3. Step 3: Cross multiply
    121,417.39x = 182,126.09 × 65,283.94
  4. Step 4: Simplify right side
    121,417.39x = 11,889,908,731.99
  5. Step 5: Solve for x
    x = 11,889,908,731.99/121,417.39
  6. Step 6: Final answer
    x = 97,925.91

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1.5x scale

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.