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Finding the Fourth Proportional to 219,047.76, 302,285.93 and 118,445.76

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Solution

The fourth proportional to 219,047.76, 302,285.93 and 118,445.76 is: 163,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,047.76 : 302,285.93 = 118,445.76 : x
  2. Step 2: Convert to fraction form
    219,047.76/302,285.93 = 118,445.76/x
  3. Step 3: Cross multiply
    219,047.76x = 302,285.93 × 118,445.76
  4. Step 4: Simplify right side
    219,047.76x = 35,804,486,123.93
  5. Step 5: Solve for x
    x = 35,804,486,123.93/219,047.76
  6. Step 6: Final answer
    x = 163,455.16

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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.