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Finding the Fourth Proportional to 219,442.32, 302,830.20 and 118,840.32

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Solution

The fourth proportional to 219,442.32, 302,830.20 and 118,840.32 is: 163,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,442.32 : 302,830.20 = 118,840.32 : x
  2. Step 2: Convert to fraction form
    219,442.32/302,830.20 = 118,840.32/x
  3. Step 3: Cross multiply
    219,442.32x = 302,830.20 × 118,840.32
  4. Step 4: Simplify right side
    219,442.32x = 35,988,437,873.66
  5. Step 5: Solve for x
    x = 35,988,437,873.66/219,442.32
  6. Step 6: Final answer
    x = 163,999.53

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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.