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Finding the Fourth Proportional to 97,348.40, 134,401.61 and 74,643.77

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Solution

The fourth proportional to 97,348.40, 134,401.61 and 74,643.77 is: 103,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,348.40 : 134,401.61 = 74,643.77 : x
  2. Step 2: Convert to fraction form
    97,348.40/134,401.61 = 74,643.77/x
  3. Step 3: Cross multiply
    97,348.40x = 134,401.61 × 74,643.77
  4. Step 4: Simplify right side
    97,348.40x = 10,032,242,827.25
  5. Step 5: Solve for x
    x = 10,032,242,827.25/97,348.40
  6. Step 6: Final answer
    x = 103,055.04

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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.