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Finding the Fourth Proportional to 310,016.70, 465,089.85 and 99,675.90

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Solution

The fourth proportional to 310,016.70, 465,089.85 and 99,675.90 is: 149,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,016.70 : 465,089.85 = 99,675.90 : x
  2. Step 2: Convert to fraction form
    310,016.70/465,089.85 = 99,675.90/x
  3. Step 3: Cross multiply
    310,016.70x = 465,089.85 × 99,675.90
  4. Step 4: Simplify right side
    310,016.70x = 46,358,249,379.62
  5. Step 5: Solve for x
    x = 46,358,249,379.62/310,016.70
  6. Step 6: Final answer
    x = 149,534.68

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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.