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Finding the Fourth Proportional to 208,061.40, 312,092.10 and 183,955.80

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Solution

The fourth proportional to 208,061.40, 312,092.10 and 183,955.80 is: 275,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,061.40 : 312,092.10 = 183,955.80 : x
  2. Step 2: Convert to fraction form
    208,061.40/312,092.10 = 183,955.80/x
  3. Step 3: Cross multiply
    208,061.40x = 312,092.10 × 183,955.80
  4. Step 4: Simplify right side
    208,061.40x = 57,411,151,929.18
  5. Step 5: Solve for x
    x = 57,411,151,929.18/208,061.40
  6. Step 6: Final answer
    x = 275,933.70

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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.