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Finding the Fourth Proportional to 103,263.68, 154,877.63 and 28,365.98

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Solution

The fourth proportional to 103,263.68, 154,877.63 and 28,365.98 is: 42,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,263.68 : 154,877.63 = 28,365.98 : x
  2. Step 2: Convert to fraction form
    103,263.68/154,877.63 = 28,365.98/x
  3. Step 3: Cross multiply
    103,263.68x = 154,877.63 × 28,365.98
  4. Step 4: Simplify right side
    103,263.68x = 4,393,254,838.81
  5. Step 5: Solve for x
    x = 4,393,254,838.81/103,263.68
  6. Step 6: Final answer
    x = 42,544.05

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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.