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Finding the Fourth Proportional to 211,223.57, 316,613.88 and 98,809.07

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Solution

The fourth proportional to 211,223.57, 316,613.88 and 98,809.07 is: 148,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,223.57 : 316,613.88 = 98,809.07 : x
  2. Step 2: Convert to fraction form
    211,223.57/316,613.88 = 98,809.07/x
  3. Step 3: Cross multiply
    211,223.57x = 316,613.88 × 98,809.07
  4. Step 4: Simplify right side
    211,223.57x = 31,284,321,448.82
  5. Step 5: Solve for x
    x = 31,284,321,448.82/211,223.57
  6. Step 6: Final answer
    x = 148,110.00

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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.