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Finding the Fourth Proportional to 102,703.70, 153,925.95 and 49,999.70

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Solution

The fourth proportional to 102,703.70, 153,925.95 and 49,999.70 is: 74,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.70 : 153,925.95 = 49,999.70 : x
  2. Step 2: Convert to fraction form
    102,703.70/153,925.95 = 49,999.70/x
  3. Step 3: Cross multiply
    102,703.70x = 153,925.95 × 49,999.70
  4. Step 4: Simplify right side
    102,703.70x = 7,696,251,322.22
  5. Step 5: Solve for x
    x = 7,696,251,322.22/102,703.70
  6. Step 6: Final answer
    x = 74,936.46

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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.