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Finding the Fourth Proportional to 140,834,368.80, 210,999,610.80 and 119,167,322.40

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Solution

The fourth proportional to 140,834,368.80, 210,999,610.80 and 119,167,322.40 is: 178,537,801.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,834,368.80 : 210,999,610.80 = 119,167,322.40 : x
  2. Step 2: Convert to fraction form
    140,834,368.80/210,999,610.80 = 119,167,322.40/x
  3. Step 3: Cross multiply
    140,834,368.80x = 210,999,610.80 × 119,167,322.40
  4. Step 4: Simplify right side
    140,834,368.80x = 25,144,258,646,478,124
  5. Step 5: Solve for x
    x = 25,144,258,646,478,124/140,834,368.80
  6. Step 6: Final answer
    x = 178,537,801.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.