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Finding the Fourth Proportional to 105,365.88, 158,048.64 and 49,187.16

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Solution

The fourth proportional to 105,365.88, 158,048.64 and 49,187.16 is: 73,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,365.88 : 158,048.64 = 49,187.16 : x
  2. Step 2: Convert to fraction form
    105,365.88/158,048.64 = 49,187.16/x
  3. Step 3: Cross multiply
    105,365.88x = 158,048.64 × 49,187.16
  4. Step 4: Simplify right side
    105,365.88x = 7,773,963,743.46
  5. Step 5: Solve for x
    x = 7,773,963,743.46/105,365.88
  6. Step 6: Final answer
    x = 73,780.66

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1.5x scale

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.