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Finding the Fourth Proportional to 91,703.52, 137,509.92 and 32,530.32

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Solution

The fourth proportional to 91,703.52, 137,509.92 and 32,530.32 is: 48,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,703.52 : 137,509.92 = 32,530.32 : x
  2. Step 2: Convert to fraction form
    91,703.52/137,509.92 = 32,530.32/x
  3. Step 3: Cross multiply
    91,703.52x = 137,509.92 × 32,530.32
  4. Step 4: Simplify right side
    91,703.52x = 4,473,241,700.77
  5. Step 5: Solve for x
    x = 4,473,241,700.77/91,703.52
  6. Step 6: Final answer
    x = 48,779.39

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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.