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Finding the Fourth Proportional to 60,316,978.40, 90,475,467.60 and 34,807,810.40

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Solution

The fourth proportional to 60,316,978.40, 90,475,467.60 and 34,807,810.40 is: 52,211,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,316,978.40 : 90,475,467.60 = 34,807,810.40 : x
  2. Step 2: Convert to fraction form
    60,316,978.40/90,475,467.60 = 34,807,810.40/x
  3. Step 3: Cross multiply
    60,316,978.40x = 90,475,467.60 × 34,807,810.40
  4. Step 4: Simplify right side
    60,316,978.40x = 3,149,252,922,072,142.50
  5. Step 5: Solve for x
    x = 3,149,252,922,072,142.50/60,316,978.40
  6. Step 6: Final answer
    x = 52,211,715.60

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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.