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Finding the Fourth Proportional to 66,528,021.90, 92,912,482.50 and 66,528,021.90

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Solution

The fourth proportional to 66,528,021.90, 92,912,482.50 and 66,528,021.90 is: 92,912,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,021.90 : 92,912,482.50 = 66,528,021.90 : x
  2. Step 2: Convert to fraction form
    66,528,021.90/92,912,482.50 = 66,528,021.90/x
  3. Step 3: Cross multiply
    66,528,021.90x = 92,912,482.50 × 66,528,021.90
  4. Step 4: Simplify right side
    66,528,021.90x = 6,181,283,670,543,367
  5. Step 5: Solve for x
    x = 6,181,283,670,543,367/66,528,021.90
  6. Step 6: Final answer
    x = 92,912,482.50

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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.