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Finding the Fourth Proportional to 136,803.81, 204,828.25 and 70,101.93

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Solution

The fourth proportional to 136,803.81, 204,828.25 and 70,101.93 is: 104,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,803.81 : 204,828.25 = 70,101.93 : x
  2. Step 2: Convert to fraction form
    136,803.81/204,828.25 = 70,101.93/x
  3. Step 3: Cross multiply
    136,803.81x = 204,828.25 × 70,101.93
  4. Step 4: Simplify right side
    136,803.81x = 14,358,855,643.52
  5. Step 5: Solve for x
    x = 14,358,855,643.52/136,803.81
  6. Step 6: Final answer
    x = 104,959.47

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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.