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Finding the Fourth Proportional to 180,077.76, 248,506.74 and 99,504.90

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Solution

The fourth proportional to 180,077.76, 248,506.74 and 99,504.90 is: 137,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,077.76 : 248,506.74 = 99,504.90 : x
  2. Step 2: Convert to fraction form
    180,077.76/248,506.74 = 99,504.90/x
  3. Step 3: Cross multiply
    180,077.76x = 248,506.74 × 99,504.90
  4. Step 4: Simplify right side
    180,077.76x = 24,727,638,313.03
  5. Step 5: Solve for x
    x = 24,727,638,313.03/180,077.76
  6. Step 6: Final answer
    x = 137,316.45

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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.