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Finding the Fourth Proportional to 144,762.55, 199,756.19 and 84,320.55

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Solution

The fourth proportional to 144,762.55, 199,756.19 and 84,320.55 is: 116,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,762.55 : 199,756.19 = 84,320.55 : x
  2. Step 2: Convert to fraction form
    144,762.55/199,756.19 = 84,320.55/x
  3. Step 3: Cross multiply
    144,762.55x = 199,756.19 × 84,320.55
  4. Step 4: Simplify right side
    144,762.55x = 16,843,552,017.51
  5. Step 5: Solve for x
    x = 16,843,552,017.51/144,762.55
  6. Step 6: Final answer
    x = 116,352.97

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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.