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Finding the Fourth Proportional to 291,641.52, 402,467.04 and 164,319.60

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Solution

The fourth proportional to 291,641.52, 402,467.04 and 164,319.60 is: 226,762.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,641.52 : 402,467.04 = 164,319.60 : x
  2. Step 2: Convert to fraction form
    291,641.52/402,467.04 = 164,319.60/x
  3. Step 3: Cross multiply
    291,641.52x = 402,467.04 × 164,319.60
  4. Step 4: Simplify right side
    291,641.52x = 66,133,223,025.98
  5. Step 5: Solve for x
    x = 66,133,223,025.98/291,641.52
  6. Step 6: Final answer
    x = 226,762.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.