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Finding the Fourth Proportional to 119,210, 164,436.84 and 70,779.07

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Solution

The fourth proportional to 119,210, 164,436.84 and 70,779.07 is: 97,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,210 : 164,436.84 = 70,779.07 : x
  2. Step 2: Convert to fraction form
    119,210/164,436.84 = 70,779.07/x
  3. Step 3: Cross multiply
    119,210x = 164,436.84 × 70,779.07
  4. Step 4: Simplify right side
    119,210x = 11,638,686,608.94
  5. Step 5: Solve for x
    x = 11,638,686,608.94/119,210
  6. Step 6: Final answer
    x = 97,631.80

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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.