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Finding the Fourth Proportional to 59,438.80, 89,109.06 and 46,349.20

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Solution

The fourth proportional to 59,438.80, 89,109.06 and 46,349.20 is: 69,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,438.80 : 89,109.06 = 46,349.20 : x
  2. Step 2: Convert to fraction form
    59,438.80/89,109.06 = 46,349.20/x
  3. Step 3: Cross multiply
    59,438.80x = 89,109.06 × 46,349.20
  4. Step 4: Simplify right side
    59,438.80x = 4,130,133,643.75
  5. Step 5: Solve for x
    x = 4,130,133,643.75/59,438.80
  6. Step 6: Final answer
    x = 69,485.48

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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.