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Finding the Fourth Proportional to 219,555.32, 302,986.68 and 118,953.32

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Solution

The fourth proportional to 219,555.32, 302,986.68 and 118,953.32 is: 164,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,555.32 : 302,986.68 = 118,953.32 : x
  2. Step 2: Convert to fraction form
    219,555.32/302,986.68 = 118,953.32/x
  3. Step 3: Cross multiply
    219,555.32x = 302,986.68 × 118,953.32
  4. Step 4: Simplify right side
    219,555.32x = 36,041,271,501.78
  5. Step 5: Solve for x
    x = 36,041,271,501.78/219,555.32
  6. Step 6: Final answer
    x = 164,155.76

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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.