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Finding the Fourth Proportional to 104,716, 157,124.40 and 52,130.08

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Solution

The fourth proportional to 104,716, 157,124.40 and 52,130.08 is: 78,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,716 : 157,124.40 = 52,130.08 : x
  2. Step 2: Convert to fraction form
    104,716/157,124.40 = 52,130.08/x
  3. Step 3: Cross multiply
    104,716x = 157,124.40 × 52,130.08
  4. Step 4: Simplify right side
    104,716x = 8,190,907,541.95
  5. Step 5: Solve for x
    x = 8,190,907,541.95/104,716
  6. Step 6: Final answer
    x = 78,220.21

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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.