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Finding the Fourth Proportional to 211,192.67, 316,762.56 and 69,026.06

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Solution

The fourth proportional to 211,192.67, 316,762.56 and 69,026.06 is: 103,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,192.67 : 316,762.56 = 69,026.06 : x
  2. Step 2: Convert to fraction form
    211,192.67/316,762.56 = 69,026.06/x
  3. Step 3: Cross multiply
    211,192.67x = 316,762.56 × 69,026.06
  4. Step 4: Simplify right side
    211,192.67x = 21,864,869,888.50
  5. Step 5: Solve for x
    x = 21,864,869,888.50/211,192.67
  6. Step 6: Final answer
    x = 103,530.44

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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.