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Finding the Fourth Proportional to 94,751.66, 130,698.78 and 56,485.46

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Solution

The fourth proportional to 94,751.66, 130,698.78 and 56,485.46 is: 77,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,751.66 : 130,698.78 = 56,485.46 : x
  2. Step 2: Convert to fraction form
    94,751.66/130,698.78 = 56,485.46/x
  3. Step 3: Cross multiply
    94,751.66x = 130,698.78 × 56,485.46
  4. Step 4: Simplify right side
    94,751.66x = 7,382,580,709.74
  5. Step 5: Solve for x
    x = 7,382,580,709.74/94,751.66
  6. Step 6: Final answer
    x = 77,915.05

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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.