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Finding the Fourth Proportional to 73,106.48, 100,880.88 and 42,888.64

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Solution

The fourth proportional to 73,106.48, 100,880.88 and 42,888.64 is: 59,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106.48 : 100,880.88 = 42,888.64 : x
  2. Step 2: Convert to fraction form
    73,106.48/100,880.88 = 42,888.64/x
  3. Step 3: Cross multiply
    73,106.48x = 100,880.88 × 42,888.64
  4. Step 4: Simplify right side
    73,106.48x = 4,326,643,745.20
  5. Step 5: Solve for x
    x = 4,326,643,745.20/73,106.48
  6. Step 6: Final answer
    x = 59,182.77

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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.