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Finding the Fourth Proportional to 58,266,346.60, 81,421,719.80 and 58,266,346.60

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Solution

The fourth proportional to 58,266,346.60, 81,421,719.80 and 58,266,346.60 is: 81,421,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266,346.60 : 81,421,719.80 = 58,266,346.60 : x
  2. Step 2: Convert to fraction form
    58,266,346.60/81,421,719.80 = 58,266,346.60/x
  3. Step 3: Cross multiply
    58,266,346.60x = 81,421,719.80 × 58,266,346.60
  4. Step 4: Simplify right side
    58,266,346.60x = 4,744,146,146,634,883
  5. Step 5: Solve for x
    x = 4,744,146,146,634,883/58,266,346.60
  6. Step 6: Final answer
    x = 81,421,719.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.