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Finding the Fourth Proportional to 210,570.35, 290,587.12 and 119,934.76

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Solution

The fourth proportional to 210,570.35, 290,587.12 and 119,934.76 is: 165,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,570.35 : 290,587.12 = 119,934.76 : x
  2. Step 2: Convert to fraction form
    210,570.35/290,587.12 = 119,934.76/x
  3. Step 3: Cross multiply
    210,570.35x = 290,587.12 × 119,934.76
  4. Step 4: Simplify right side
    210,570.35x = 34,851,495,769.82
  5. Step 5: Solve for x
    x = 34,851,495,769.82/210,570.35
  6. Step 6: Final answer
    x = 165,509.98

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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.