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Finding the Fourth Proportional to 114,954.95, 158,547.96 and 74,681.69

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Solution

The fourth proportional to 114,954.95, 158,547.96 and 74,681.69 is: 103,002.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,954.95 : 158,547.96 = 74,681.69 : x
  2. Step 2: Convert to fraction form
    114,954.95/158,547.96 = 74,681.69/x
  3. Step 3: Cross multiply
    114,954.95x = 158,547.96 × 74,681.69
  4. Step 4: Simplify right side
    114,954.95x = 11,840,628,806.11
  5. Step 5: Solve for x
    x = 11,840,628,806.11/114,954.95
  6. Step 6: Final answer
    x = 103,002.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.