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Finding the Fourth Proportional to 91,144.02, 136,716.02 and 46,746.08

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Solution

The fourth proportional to 91,144.02, 136,716.02 and 46,746.08 is: 70,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,144.02 : 136,716.02 = 46,746.08 : x
  2. Step 2: Convert to fraction form
    91,144.02/136,716.02 = 46,746.08/x
  3. Step 3: Cross multiply
    91,144.02x = 136,716.02 × 46,746.08
  4. Step 4: Simplify right side
    91,144.02x = 6,390,938,008.20
  5. Step 5: Solve for x
    x = 6,390,938,008.20/91,144.02
  6. Step 6: Final answer
    x = 70,119.11

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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.