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Finding the Fourth Proportional to 415,477.95, 623,093.90 and 115,886.29

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Solution

The fourth proportional to 415,477.95, 623,093.90 and 115,886.29 is: 173,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,477.95 : 623,093.90 = 115,886.29 : x
  2. Step 2: Convert to fraction form
    415,477.95/623,093.90 = 115,886.29/x
  3. Step 3: Cross multiply
    415,477.95x = 623,093.90 × 115,886.29
  4. Step 4: Simplify right side
    415,477.95x = 72,208,037,277.16
  5. Step 5: Solve for x
    x = 72,208,037,277.16/415,477.95
  6. Step 6: Final answer
    x = 173,795.12

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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.