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Finding the Fourth Proportional to 183,897.40, 253,762.80 and 103,318.60

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Solution

The fourth proportional to 183,897.40, 253,762.80 and 103,318.60 is: 142,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,897.40 : 253,762.80 = 103,318.60 : x
  2. Step 2: Convert to fraction form
    183,897.40/253,762.80 = 103,318.60/x
  3. Step 3: Cross multiply
    183,897.40x = 253,762.80 × 103,318.60
  4. Step 4: Simplify right side
    183,897.40x = 26,218,417,228.08
  5. Step 5: Solve for x
    x = 26,218,417,228.08/183,897.40
  6. Step 6: Final answer
    x = 142,570.90

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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.