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Finding the Fourth Proportional to 379,655.22, 569,640.02 and 166,312.92

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Solution

The fourth proportional to 379,655.22, 569,640.02 and 166,312.92 is: 249,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,655.22 : 569,640.02 = 166,312.92 : x
  2. Step 2: Convert to fraction form
    379,655.22/569,640.02 = 166,312.92/x
  3. Step 3: Cross multiply
    379,655.22x = 569,640.02 × 166,312.92
  4. Step 4: Simplify right side
    379,655.22x = 94,738,495,075.06
  5. Step 5: Solve for x
    x = 94,738,495,075.06/379,655.22
  6. Step 6: Final answer
    x = 249,538.24

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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.