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Finding the Fourth Proportional to 357,851.39, 536,779.37 and 105,130.85

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Solution

The fourth proportional to 357,851.39, 536,779.37 and 105,130.85 is: 157,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,851.39 : 536,779.37 = 105,130.85 : x
  2. Step 2: Convert to fraction form
    357,851.39/536,779.37 = 105,130.85/x
  3. Step 3: Cross multiply
    357,851.39x = 536,779.37 × 105,130.85
  4. Step 4: Simplify right side
    357,851.39x = 56,432,069,009.49
  5. Step 5: Solve for x
    x = 56,432,069,009.49/357,851.39
  6. Step 6: Final answer
    x = 157,696.94

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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.