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Finding the Fourth Proportional to 91,295.01, 125,984.76 and 51,009.06

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Solution

The fourth proportional to 91,295.01, 125,984.76 and 51,009.06 is: 70,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,295.01 : 125,984.76 = 51,009.06 : x
  2. Step 2: Convert to fraction form
    91,295.01/125,984.76 = 51,009.06/x
  3. Step 3: Cross multiply
    91,295.01x = 125,984.76 × 51,009.06
  4. Step 4: Simplify right side
    91,295.01x = 6,426,364,181.93
  5. Step 5: Solve for x
    x = 6,426,364,181.93/91,295.01
  6. Step 6: Final answer
    x = 70,391.19

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1.5x scale

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.