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Finding the Fourth Proportional to 292,330.80, 438,611.40 and 114,807.60

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Solution

The fourth proportional to 292,330.80, 438,611.40 and 114,807.60 is: 172,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,330.80 : 438,611.40 = 114,807.60 : x
  2. Step 2: Convert to fraction form
    292,330.80/438,611.40 = 114,807.60/x
  3. Step 3: Cross multiply
    292,330.80x = 438,611.40 × 114,807.60
  4. Step 4: Simplify right side
    292,330.80x = 50,355,922,166.64
  5. Step 5: Solve for x
    x = 50,355,922,166.64/292,330.80
  6. Step 6: Final answer
    x = 172,256.64

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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.