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Finding the Fourth Proportional to 219,340.55, 302,690.93 and 118,738.55

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Solution

The fourth proportional to 219,340.55, 302,690.93 and 118,738.55 is: 163,859.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,340.55 : 302,690.93 = 118,738.55 : x
  2. Step 2: Convert to fraction form
    219,340.55/302,690.93 = 118,738.55/x
  3. Step 3: Cross multiply
    219,340.55x = 302,690.93 × 118,738.55
  4. Step 4: Simplify right side
    219,340.55x = 35,941,081,532.66
  5. Step 5: Solve for x
    x = 35,941,081,532.66/219,340.55
  6. Step 6: Final answer
    x = 163,859.72

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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.