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Finding the Fourth Proportional to 353,277.99, 487,518.89 and 192,129.57

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Solution

The fourth proportional to 353,277.99, 487,518.89 and 192,129.57 is: 265,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,277.99 : 487,518.89 = 192,129.57 : x
  2. Step 2: Convert to fraction form
    353,277.99/487,518.89 = 192,129.57/x
  3. Step 3: Cross multiply
    353,277.99x = 487,518.89 × 192,129.57
  4. Step 4: Simplify right side
    353,277.99x = 93,666,793,741.93
  5. Step 5: Solve for x
    x = 93,666,793,741.93/353,277.99
  6. Step 6: Final answer
    x = 265,136.23

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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.