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Finding the Fourth Proportional to 401,307.95, 602,054.57 and 135,061.97

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Solution

The fourth proportional to 401,307.95, 602,054.57 and 135,061.97 is: 202,624.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,307.95 : 602,054.57 = 135,061.97 : x
  2. Step 2: Convert to fraction form
    401,307.95/602,054.57 = 135,061.97/x
  3. Step 3: Cross multiply
    401,307.95x = 602,054.57 × 135,061.97
  4. Step 4: Simplify right side
    401,307.95x = 81,314,673,599.09
  5. Step 5: Solve for x
    x = 81,314,673,599.09/401,307.95
  6. Step 6: Final answer
    x = 202,624.13

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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.