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Finding the Fourth Proportional to 210,862.71, 316,294.47 and 53,090.10

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Solution

The fourth proportional to 210,862.71, 316,294.47 and 53,090.10 is: 79,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,862.71 : 316,294.47 = 53,090.10 : x
  2. Step 2: Convert to fraction form
    210,862.71/316,294.47 = 53,090.10/x
  3. Step 3: Cross multiply
    210,862.71x = 316,294.47 × 53,090.10
  4. Step 4: Simplify right side
    210,862.71x = 16,792,105,041.75
  5. Step 5: Solve for x
    x = 16,792,105,041.75/210,862.71
  6. Step 6: Final answer
    x = 79,635.25

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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.