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Finding the Fourth Proportional to 210,103, 289,925.90 and 119,460.10

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Solution

The fourth proportional to 210,103, 289,925.90 and 119,460.10 is: 164,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,103 : 289,925.90 = 119,460.10 : x
  2. Step 2: Convert to fraction form
    210,103/289,925.90 = 119,460.10/x
  3. Step 3: Cross multiply
    210,103x = 289,925.90 × 119,460.10
  4. Step 4: Simplify right side
    210,103x = 34,634,577,006.59
  5. Step 5: Solve for x
    x = 34,634,577,006.59/210,103
  6. Step 6: Final answer
    x = 164,845.70

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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.