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Finding the Fourth Proportional to 144,668.32, 199,509.06 and 99,266.20

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Solution

The fourth proportional to 144,668.32, 199,509.06 and 99,266.20 is: 136,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,668.32 : 199,509.06 = 99,266.20 : x
  2. Step 2: Convert to fraction form
    144,668.32/199,509.06 = 99,266.20/x
  3. Step 3: Cross multiply
    144,668.32x = 199,509.06 × 99,266.20
  4. Step 4: Simplify right side
    144,668.32x = 19,804,506,251.77
  5. Step 5: Solve for x
    x = 19,804,506,251.77/144,668.32
  6. Step 6: Final answer
    x = 136,895.94

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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.