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Finding the Fourth Proportional to 136,563,946.40, 204,559,762.80 and 63,842,794.40

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Solution

The fourth proportional to 136,563,946.40, 204,559,762.80 and 63,842,794.40 is: 95,630,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,563,946.40 : 204,559,762.80 = 63,842,794.40 : x
  2. Step 2: Convert to fraction form
    136,563,946.40/204,559,762.80 = 63,842,794.40/x
  3. Step 3: Cross multiply
    136,563,946.40x = 204,559,762.80 × 63,842,794.40
  4. Step 4: Simplify right side
    136,563,946.40x = 13,059,666,878,953,168
  5. Step 5: Solve for x
    x = 13,059,666,878,953,168/136,563,946.40
  6. Step 6: Final answer
    x = 95,630,415.08

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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.