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Finding the Fourth Proportional to 357,167.79, 535,830.93 and 120,505.23

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Solution

The fourth proportional to 357,167.79, 535,830.93 and 120,505.23 is: 180,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,167.79 : 535,830.93 = 120,505.23 : x
  2. Step 2: Convert to fraction form
    357,167.79/535,830.93 = 120,505.23/x
  3. Step 3: Cross multiply
    357,167.79x = 535,830.93 × 120,505.23
  4. Step 4: Simplify right side
    357,167.79x = 64,570,429,460.76
  5. Step 5: Solve for x
    x = 64,570,429,460.76/357,167.79
  6. Step 6: Final answer
    x = 180,784.58

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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.