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Finding the Fourth Proportional to 55,884,886.60, 83,827,329.90 and 53,239,491.40

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Solution

The fourth proportional to 55,884,886.60, 83,827,329.90 and 53,239,491.40 is: 79,859,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,884,886.60 : 83,827,329.90 = 53,239,491.40 : x
  2. Step 2: Convert to fraction form
    55,884,886.60/83,827,329.90 = 53,239,491.40/x
  3. Step 3: Cross multiply
    55,884,886.60x = 83,827,329.90 × 53,239,491.40
  4. Step 4: Simplify right side
    55,884,886.60x = 4,462,924,409,296,013
  5. Step 5: Solve for x
    x = 4,462,924,409,296,013/55,884,886.60
  6. Step 6: Final answer
    x = 79,859,237.10

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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.